Hygrama Ag

Parker-Hannifin Manufacturing Germany Gmbh Kg

Parker Hannifin Manufacturing Germany Gmbh & Co. Kg

Peter Rohatschek

Erhard Fritz

Thomas Henke

Alexander Buchhauser

Rainer Schweizer

Axel Fröschle

Axel Dr Fröschle

A pneumatic cylinder having end position damping of the cylinder piston is controlled by means of a vent path and a control valve, the control valve comprises a control piston, the control side of which is pressurized by a pneumatic pressure which exists in a control chamber. The movement of the control piston into its closing position is pneumatically controlled by the increasing pressure in the damping chamber during the beginning of the damping. No additional components or controls are to be provided, so that the control of the end position damping occurs exclusively by the pressure conditions prevailing at the time when the damping begins.

Pneumatic cylinder having a self-adjusting end position damping

In a piston rod-less pneumatic cylinder, the longitudinal slot (,) is sealed from the inside on either side of the piston with a sealing tape (,) which exhibits fixing elements (,) that engage a fixing edge (,) provided on the cylinder with a positive fit to secure the sealing tape (,) given an unpressurized interior. This ensures a reliable sealing of the interior even in an unpressurized state, and prevents leaks from starting when a previously unpressurized interior is pressurized.

Piston rod-less pneumatic cylinder

In a piston rod-less pneumatic cylinder, the sealing tape (,) sealing the lateral longitudinal slot (,) from the inside on either side of the piston (,) is held by an outer band (,) covering the longitudinal slot (,) from outside with the cylinder interior (,) in an unpressurized state. To reduce the forces necessary to engage or disengage this fixing joint, fixing elements (,) interact in a purely frictionally engaged manner on the sealing tape (,) and outer band (,).

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Metzingen, Germany

Peter Rohatschek